Episode 28: Summer

Swimming Pool

"Swimming Pool" uploaded to stock.xchng by getwired.

Summer 2008 officially begins today, June 20, at 7:50 EDT (at least in the Northern Hemisphere). Here at Distillations, we’re celebrating with a show dedicated to poolside lounging. We’ve got the sunscreen and the chlorine—in fact, two different kinds of chlorine. Later in the show, CHF’ s own David Caruso explains how buoyancy allows some people to float and makes others sink. So lather up, stoke the grill, and enjoy the solstice. Element of the Week: Titanium.

Show Clock

00:00 Opening Credits
00:31 Introduction
00:58 Element of the Week: Titanium
02:57 Chemistry in Your Cupboard: Chlorination
05:22 Mystery Solved! Why do we float?
07:42 Quote: Henry James
08:00 Closing Credits

Resources and References

For background on titanium: Web Elements Periodic Table.
For a good introduction to the issues surrounding nanoparticles in sunscreen: David Biello, “Do Nanoparticles and Sunscreen Mix?Scientific American 20 August 2007.
You can find a good introduction to buoyancy, with brainteaser, at this site from the PBS television show NOVA.
Today’s quote was attributed to the novelist Henry James by his fellow novelist, Edith Wharton, in her memoir, A Backward Glance (1934).


A special thanks to David Caruso for researching the show.

Our theme music is composed by Dave Kaufman. Additional music from the PodSafe Music Network. The music at the Element of the Week is “Stickybee,” by Josh Woodward. At the show ID, you’re hearing “Coombargana,” by 34hZ. The show ends with “One Question at a Time,” by Van Davis.


Posted In: Society

comments powered by Disqus

By posting your comment, you agree to abide by CHF’s Comment Policies.

The Museum at CHF

The Museum at CHF

Explore the fascinating history of chemistry and the role science plays in the modern world at our museum in Philadelphia.


Distillations Magazine
Support CHF and receive our award-winning quarterly magazine.

Join the Conversation

Distillations Blog logo
Our blog brings the stories of science and culture directly to you.